Three proof of concept experimental setups that use acoustic tweezers in Petri dishes. From left to right, a standing pattern for sorting, a whirlpool for concentrating, and high-frequency beam-like waves for concentration and stimulation. Credit: Tony Huang, Duke University Three proof-of-concept prototypes seek to make contactless ‘acoustic tweezer’ technology available to a wide array of laboratories. Mechanical engineers at Duke University have demonstrated a set of prototypes for manipulating particles and cells in a Petri dish using sound waves. The devices, known in the scientific community as “acoustic tweezers,” are the first foray into making these types of tools, which have thus far been relegated to laboratories with specific equipment and expertise, available for use in a wide array of…

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• August 7, 2021
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